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Triple-tube compact fluorescent bulb with four-pin base

SYLVANIA

SYLVANIA 20888 42 W 3000 K 12000 h 4-pin triple-tube fluorescent bulb

SKU CH-STQ6-1V6M5

Triple-tube compact fluorescent lamp with a GX24Q-4 base, 42 W power draw, 3000 K warm-white output, 82 CRI and 12 000-hour rated life

  • TypeFluorescent Bulbs
  • Wattage42
  • Color Temperature3000K
  • Life Time Hours12000
  • Color Rendering Index82
  • Warm 3000 K light for comfortable indoor spaces
  • 42 W fluorescent output with 82 CRI colour accuracy
  • Triple-tube 4-pin design fits GX24Q-4 fixtures
  • 12 000-hour rated life reduces replacement frequency
  • New SYLVANIA 20888 bulb ready for general lighting

SYLVANIA 20888 42 W Fluorescent Bulb

This SYLVANIA 20888 is a 42 W triple-tube compact fluorescent bulb with a GX24Q-4 four-pin base. It produces a 3000 K warm white light and has a rated life of 12000 hours. The colour rendering index is 82. It is designed for general and consumer lighting fixtures that accept this specific base type.

Suits Fixtures With GX24Q-4 Sockets

Buyers replacing a CF42DT/E/IN/830 lamp in compatible downlights, wall sconces or surface-mounted luminaires will find this a direct match. The four-pin base means the fixture must provide the correct electronic ballast and socket keying. It will not work in two-pin magnetic ballast sockets, Edison screw bases or any fixture lacking the GX24Q-4 interface.

Simple Four-Pin Plug-In Installation

Installation requires aligning the keyed GX24Q-4 pins with the socket and pressing firmly until seated; no tools are needed. Ensure the power is off and the existing ballast is compatible with 42 W triple-tube lamps. A common issue is forcing the bulb into a two-pin or differently keyed four-pin socket, which damages the base or prevents proper electrical contact.

Highlights

  • Warm 3000 K light for comfortable indoor spaces
  • 42 W fluorescent output with 82 CRI colour accuracy
  • Triple-tube 4-pin design fits GX24Q-4 fixtures
  • 12 000-hour rated life reduces replacement frequency
  • New SYLVANIA 20888 bulb ready for general lighting

Specifications

BrandSylvania
TypeFluorescent Bulbs
Wattage42
Color Temperature3000K
Life Time Hours12000
Color Rendering Index82

Questions about this item

What fixture base is required for the GX24Q-4 4-pin triple-tube design?

The bulb fits a GX24Q-4 4-pin socket designed for triple-tube compact fluorescent lamps. The fixture must accept this specific base type for proper electrical contact.

Will the 42-watt rating and 3000K output work with an older magnetic ballast?

No, the 42-watt triple-tube lamp requires an electronic ballast matched to its wattage. A magnetic ballast will not start or run the bulb correctly.

How can I confirm the 12000-hour rated life and 82 CRI are being delivered after installation?

Verify the lamp starts instantly without flicker and maintains steady 3000K light. Track operating hours; a significant drop in brightness before 12000 hours suggests a ballast or supply issue.

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